Gas-burner.



E. B. BABCOCK.

GAS BURNER. APPLICATION I ILBD SEPT. 2o, 1913.

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ELVIN IB. BABCOCK, OF SEATTLE, XVASHINGTON.

GAS-BURNER.

Specification of Letters Patent.

Patented J une 23, 1914.

Application 'ied September 20, 1913. Serial No. 790,881.

To all whom t may concern Be it known that I, ELvrN B. BABooox, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Gas-Burners, of which the following is a specification.

This invention relates to improvements in gas burners of the class used in cooking and heating stoves, ranges and furnaces.

The object of my improvements is to produce a burner of this type of durable and inexpensive construction, economical in the consumption of gas, and which may be adjusted to apply heat in a most efficient manner.

The invention consists in the novel construction and adaptation of devices hereinafter described with reference to the accompanying drawings, and finally pointed out particularly in the claims-the features of which I have invented.

In the drawings, Figure 1 is a longitudinal section of aI gas burner embodying the present invention; and Fig. 2 is a sectional view illustrating the invention applied to a cooking range.

The reference numeral 5 designates the tubular body portion of the burner having a closed end at 6 and one or more side outlets, as at 7. At the closed end is a chamber 8 of greater diameter than the internal diameter of the body to afford a cushion space which serves to equalize the delivery' of the combustible gases from said outlets. The outlets are formed in branches 9 having their axes disposed in a plane extending radially, or nearly so, from the axis of the body. Each of said branches is formed with an enlargement near its outer end to provide within the branch a cavity 1()` of greaterV diameter than at the throat 11 or its outlet or orifice 7. By thus enlarging the branches near their outlets, the gases delivered therefrom are consumed in a hotter flame and closer to the orifices than where the branches are of equal diameters throughout or where they taper gradually to the orifices. At any rate, there is an apparent improvement in the heating efficiency of the flames produced from the bulbular type of burner nozzle over the ordinary forms. The body 5 extends through an opening 12 in the wall 13 of the fire-box of a stove and externally of the latter the body terminates in a Haring attachment 14C which affords a funnel-shaped mixing chamber. Axially of said attachment and connected integrally therewith by arms 15 is a hub 1G provider with a threaded hole in which is screwed the nozzle 17 of'a gas supply pipe 1S. A damper plate 19 provided with a centrally threaded hole to engage the threads of the nozzle is screwed upon the latter to or from the mouth of the mixer la for regulating the effective size of the opening for the admission of' air thereinto.

20 represents a collar secured to the burner, as by a. set screw 21, and is provided with an arm 22 which is utilized to impart rotary adjustment to the burner.

The burner is mounted upon the nozzle 17 to afford rotary movement for directing the burner orifices and, by the provision of the screw-threads within the hub, the burner may be moved in an axial direction to cause the nozzle to extend more or less into the mixer.

The operation of the invention may be best explained in its application to a stove such as illustrated in `Eig. 2. As shown, said stove is provided at its front with a. compartment 24 which communicates with a combustion chamber 25 extending between the oven 26 and the stove-top 27. The chamber 25 is connected at the rear with a divingflue 2S which is connected by a horizontal flue 29 below the oven with a rising-flue 30 which communicates by a flue 31 with the smoke-pipe connection 32. A damper 38 is provided for an opening 34 between chamber 25 and the flue 31, and 35 is a damper for regulating the iiow of the combustion gases from the chamber 25 into -the divingflue 28.

36 represents a Water-heating coil located in the compartment 24:.

Referring to Fig. 2, when the dampers 33 and 35 are in the positions shown and the burner is in the rotary position denoted by the full lines in the view,\to have the burner branches directed horizontally, the ames and hot gases derived from the combustible gases emitted therefrom will take the course indicated by full line arrows, that is to say-through the chamber 25 and thence by the various flues to escape through the pipe connection 32. When the damper 35 is closed and the other one, 33, opened, the flow will be from the chamber 25 directly into the pipe connection. Under the first arrangement the top of the stove and the oven are both subjected to the heat and in the other case the oven is cut out, so to speak, and the heat is utilized for cooking on the stove top only. IVhen, however, the burner is turned by means of handle 22 (Fig. l) to point the branches downwardly, as indicated by broken lines 91, (Fig. 2), then the Haines from the burner will be accordingly directed against the water-heating coil 36 before entering the chamber 25. Moreover, the burner may be turned into other rotary positions to apply the flames, for example, more directly against the top of the oven or against the underside of the stove-top as may be determined by the attendant.

IVhat I claim, is*

l. A gas-burner having a body portion with a cushion chamber at one end and a mixing chamber at its other end, an outlet branch for said body and formed interiorly with an annular recess in proximity to the outer end of the branch, and a gas supply nozzle extending axially into said mixing chamber.

2. A gas-burner comprising a mixing` chamber, a tubular body connected in axial alinement therewith and having an imperforated end remote from said Chamber, ontlet branches provided for said body and each formed with a cavity of greater diameter than both the orifice of the branch and the throat which connects the cavity with the interior of said body, and a gas supply nozzle extending axially into said mixing chamber.

3. The combination with a stove, of a burner extending into said stove, said burner being provided with a mixing chamber at the end outside of the stove and an enlarged cushioning chamber at the opposite end thereof within the stove, andv radially disposed bulbular discharge orifices positioned intermediate of said end portions and within the stove, said burner being supported entirely at its forward end and being provided rwith means whereby it may be rotated to adjust the positions of said bulbular discharge oriiices to any desired angle within the stove.

fl. In an attachment of the class described, a tubular burner, a gas inlet pipe Vhaving' adjustably mounted thereon a damper plate and a mixing chamber adapted to receive said tubular burner, said tubular burner being provided with an enlarged integral annular cushioning chamber and a plurality of bulbular burner nozzles intermediate of the ends of said tubular burner and integral therewith.

5. The combination with'V a stove, of a tubular burner provided with means to ad just the same with relation to the stove, said tubular burner having at one end thereof a cushioning chamber, and a plurality of radial bulbular burner nozzles intermediate of its ends, said burner nozzles being` each provided with a throat or outlet portJ and an annular cavity intermediate of the throat yand outlet port thereof, said outlet port being smaller in diameter than either the kthroat or the annular cavity. Y j 6. In an attachment ofthe class described, .a tubular burner having an enlarged chamber at one end thereof and provided intermediate of its ends with a plurality of 'integral bulbular burner nozzles, said burner nozzles being of a height which is less than the diameter of said tubular burner.

7. In combination with a stove, a gas inlet, of a tubular burner revolubly mounted on said gas inlet and having an enlarged end portion and a plurality of radially disposedl bulbular burner nozzles, said burner nozzles having their axes disposed in the same plane with said tubular burner, and means whereby the direction of the heat passing from said bulbular burner nozzles may be changed by rotating said tubular burner upon said gas inlet.

Signedat Seattle, Wash., this 13th day ofv September, 1913.

ELVIN B. BABCOCK. Witnesses E. PETERSON, HORACE BARNES.

Gopiei o! his patent may be obtained for nve cents each, by addressing the Commissioner o1 Patents,

Washington, D. C. 

